package com.kylin.java;

import java.util.concurrent.Callable;

public class PCRegisterTest {

    public static void main(String[] args) {
        int i = 10;
        int j = 20;
        int k = i + j;

        String s = "abc";

        System.out.println(i);
        System.out.println(k);



        Runnable runnable = ()->{};

        String a="a";
    }
}
